Not to be dramatic, but according to the scientists who track such things, the world is closer to doomsday than it has ever been, and when the big ka-boom does finally happen, it will be all our fault.
Such was the determination of the Bulletin of Atomic Scientists, who have met regularly since 1947 - and annually since 2015 - to reset the Doomsday Clock, a symbolic countdown to human extinction that became a cult symbol of Cold War anxiety in the 20th Century and found new meaning in the 21st as the litany of existential threats faced by humankind diversified.
